Bloch oscillations in semiconductor superlattices

Jagdeep Shah

doi:10.1117/12.177138

2 June 1994 Bloch oscillations in semiconductor superlattices

Jagdeep Shah

Proceedings Volume 2145, Nonlinear Optics for High-Speed Electronics and Optical Frequency Conversion; (1994) https://doi.org/10.1117/12.177138
Event: OE/LASE '94, 1994, Los Angeles, CA, United States

Abstract

In 1928 Bloch proposed that electrons in a solid subject to an electric field will undergo periodic oscillations in the momentum and real space. These Bloch oscillations have generated considerable interest and controversy since the original proposal. Semiconductor superlattices provide an ideal system for investigating Bloch oscillations. We review recent observations of Bloch oscillations in semiconductor superlattices excited by ultrashort light pulses and observed through Four-Wave-Mixing techniques and the coherent sub-millimeter-wave radiation generated by these oscillations. Negative differential resistance has also been observed in electrically biased superlattices. We also briefly discuss the relation between these two kinds of experiments.

Citation Download Citation

Jagdeep Shah "Bloch oscillations in semiconductor superlattices", Proc. SPIE 2145, Nonlinear Optics for High-Speed Electronics and Optical Frequency Conversion, (2 June 1994); https://doi.org/10.1117/12.177138

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